EP 4181303 A1 20230517 - SEPARATOR AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY INCLUDING THE SAME
Title (en)
SEPARATOR AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY INCLUDING THE SAME
Title (de)
SEPARATOR UND SEKUNDÄRBATTERIE MIT WASSERFREIEM ELEKTROLYT DAMIT
Title (fr)
SÉPARATEUR ET BATTERIE SECONDAIRE À ÉLECTROLYTE NON AQUEUX LE COMPRENANT
Publication
Application
Priority
JP 2021184689 A 20211112
Abstract (en)
A separator having both high adhesion to electrodes and high impregnating ability of a nonaqueous electrolyte is provided. The separator disclosed here includes a base material layer of a porous resin, and a ceramic layer containing inorganic particles and disposed on at least one surface of the base material layer. Principal surfaces of the separator have long sides. The separator further includes an adhesive layer having portions arranged at a predetermined pitch to form a stripe pattern on at least one of the principal surfaces. An angle formed by the adhesive layer and the long side of the at least one principal surface of the separator is 20° or more and 70° or less.
IPC 8 full level
H01M 50/414 (2021.01); H01M 50/434 (2021.01); H01M 50/446 (2021.01); H01M 50/451 (2021.01); H01M 50/457 (2021.01)
CPC (source: CN EP KR US)
H01M 10/052 (2013.01 - KR); H01M 10/0525 (2013.01 - CN US); H01M 50/414 (2021.01 - EP); H01M 50/417 (2021.01 - US); H01M 50/434 (2021.01 - CN EP KR US); H01M 50/443 (2021.01 - KR); H01M 50/446 (2021.01 - EP); H01M 50/449 (2021.01 - KR); H01M 50/451 (2021.01 - CN EP US); H01M 50/457 (2021.01 - EP); H01M 50/489 (2021.01 - KR); H01M 2220/20 (2013.01 - KR); H01M 2220/30 (2013.01 - KR); Y02E 60/10 (2013.01 - EP); Y02P 70/50 (2015.11 - EP)
Citation (applicant)
Citation (search report)
- [XY] EP 3817093 A1 20210505 - LG CHEMICAL LTD [KR]
- [Y] EP 3792995 A1 20210317 - SAMSUNG SDI CO LTD [KR], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4181303 A1 20230517; CN 116130884 A 20230516; JP 2023072260 A 20230524; KR 20230069837 A 20230519; US 2023155250 A1 20230518
DOCDB simple family (application)
EP 22206343 A 20221109; CN 202211403676 A 20221110; JP 2021184689 A 20211112; KR 20220147505 A 20221108; US 202218052978 A 20221107